I can only judge them based on CSS and PHP content because those are the things I can even properly compare. W3schools continue to be a very low quality resourc

I can only judge them based on CSS and PHP content because those are the things I can even properly compare. W3schools continue to be a very low quality resource, incomplete and incoherent on most aspects. There is a "try it yourself" that I sometimes use, merely because it's quick to whip something up, and much more faster than codepen.